Hacking Why an error pop up at installing Unlaunch v1.9, v1.8 and v1.7?

[RafaX]

Why when I want to install Unlaunch, a error appears every time I try to do it. I tried 3 different versions, v1.9, v1.8 and v1.7.

I tried with two 4GB SD cards and the error popped up, I tried with one of 8GB and the error popped up again (Yes, I did the same thing 3 times).

The error is:

Error: Mismatch in FAT copies
Please repair that before
installing unlanch

If somebody knows how to fix it, please help me!!

 

[KleinesSinchen]

The error is not about the FAT on the SD but the one on the internal NAND. Trying different SDs will not solve this.

https://dsi.cfw.guide/faq

 

[Alexander1970]

Hello.

Ask you ask in your Thread we can only give you this maybe unsatisfied answer(s) again:

Please try:
- to move/delete all installed/downloaded DSiware to your SD Card.
- the Memory Pit exploit.

And as in the DSi Guide explained:

This error is caused by twlnf. It has a critical bug that doesn’t properly update the entire NAND after modifying it. This causes certain homebrew (like the Unlaunch installer) to throw an error. Fortunately, this is fixable. Unfortunately, the method to fix it isn’t set in stone, and largely varies from system to system. Generally, deleting any DSiWare installed via twlnf in the past does the job, but make sure you have another homebrew entrypoint available if you delete an entrypoint. It has also been reported that moving all DSiWare to the SD card and back to the system can help in some cases.

Thank you. :-)